If your Adobe ColdFusion server is missing the CGI variables or they are showing up as blank it means you are missing the custom environment variables in your mod_jk.conf
To fix the FTP into your server and find your mod_jk.conf file which would normally be located at:Â /usr/local/apache/conf/mod_jk.conf and add the following lines:
# custom environment variables JkEnvVar REDIRECT_URL JkEnvVar REDIRECT_REMOTE_HOST JkEnvVar REDIRECT_PATH JkEnvVar REDIRECT_QUERY_STRING JkEnvVar REDIRECT_HTTP_ACCEPT JkEnvVar REDIRECT_HTTP_USER_AGENT JkEnvVar REDIRECT_REMOTE_ADDR JkEnvVar REDIRECT_SERVER_NAME JkEnvVar REDIRECT_SERVER_PORT JkEnvVar REDIRECT_SERVER_SOFTWARE
When completed you need to either reinstall the ColdFusion Apache connector or copy the content from your mod_jk.conf file and replace the old mod_jk.conf contents in the file: /etc/apache2/conf.d/includes/post_virtualhost_global.conf (file maybe different depending on Apache version. Check your httpd.conf file for "post_virtualhost_global.conf" path)
